fsh 255 3-1 transducer mounting location

[jdmpwrd1]

hello all, im new to the page and just bought a yamaha 255fhs. want to run a simrad 3-1 transducer with sidescan and looking for suggestion of mounting location with results. every thing i have read says there will be interference from jet was. any help would be appreciated

 

[Julian]

With my boat and transducer my view does get blocked when I'm in reverse.....otherwise its clear. You can look at the link in my signature under 242X to find all the threads on my mount. (if you don't see my signature-turn your phone on its side).

 

[jdmpwrd1]

With my boat and transducer my view does get blocked when I'm in reverse.....otherwise its clear. You can look at the link in my signature under 242X to find all the threads on my mount. (if you don't see my signature-turn your phone on its side).

Your not running sidescan on your boat, correct? Also I don’t have a flat section of hull to mount there

 

[CastawayRK]

Search (can be) your friend. There are 2 solutions that have been discussed here. Make a bracket to correct for the angle of the black plate and hang transducer from there. Or as discussed in this thread use 2 transducers. IMO this looks like the best but more complicated install

Thread 'FSH 25x side scan transducer location'

Apr 27, 2024

@MilesPrower
Where did you finally mount your transom-mount Active Imaging 3-in-1 transducer?
What was the part number?
Do you have pictures?

• TeenGee
• Replies: 15
• Forum: Yamaha Center Console FSH 19x, 21x, 22x, 25x

 

[CastawayRK]

Pic of “Plan A”

 

[FSH 210 Sport]

I only have one transducer mounted on the starboard side. While the port side scan is impacted it is not that significant. If it was I would have added another transducer in the port side and run the cable up to the mfd and used a manufacturer made Y splice to tie it into the system. Remember it’s looking down and to the sides not just to the side.

And the only time I get interference is when I’m sitting stationary in neutral with the engines on or as @Julian mentioned in reverse.

Just install it on the back of the boat and see how it works. If it doesn’t measure up then add another transducer and tie it in as mentioned above.

 

[Julian]

This is why a powerful bow trolling motor with it's own transducer is the optimal setup.

 

[TeenGee]

Look at post #18.

Thread 'Simrad NSX v. Garmin 8412 (un-derailing 255 FSH Sport H have different impellers)'

May 1, 2024

I started the thread to further the discussion that began in this thread: https://jetboaters.net/threads/why-...n-the-port-and-starboard-engines.43838/page-2
I am still waffling between the OEM provided Simrad NSX on the 255 H and starting over with a Garmin 8412.
With either system, I want to install a pair of sidescan transducers. I installed a pair of Garmin GT56UHD on our current 210FSH (https://jetboaters.net/threads/210-fsh-perfect-transducer-setup-what-is-it.30130/page-3 post 46).
I have read the Simrad NSX has...

• TeenGee
• Replies: 26
• Forum: Yamaha Center Console FSH 19x, 21x, 22x, 25x

• 

 

[Tylenator]

I only have one transducer mounted on the starboard side. While the port side scan is impacted it is not that significant. If it was I would have added another transducer in the port side and run the cable up to the mfd and used a manufacturer made Y splice to tie it into the system. Remember it’s looking down and to the sides not just to the side.

And the only time I get interference is when I’m sitting stationary in neutral with the engines on or as @Julian mentioned in reverse.

Just install it on the back of the boat and see how it works. If it doesn’t measure up then add another transducer and tie it in as mentioned above.

View attachment 226679

View attachment 226680

How is this mounted to the hull, other than screws? My used FSH came with a transducer already installed but the bracket is loose and can wiggle. I'd like to correct that properly but don't know how.

 

[FSH 210 Sport]

How is this mounted to the hull, other than screws? My used FSH came with a transducer already installed but the bracket is loose and can wiggle. I'd like to correct that properly but don't know how.

I assume it’s mounted to the transom? Take picture of it and post it here.

You just use screws and 5200. I’m going to assume it will require new holes and screws.. be sure and clean out the old screw holes the best you can and pack them with 5200. When you install the new screws be sure and pack the holes with 5200 and bed the transducer bracket with 5200.

 

[Tylenator]

I assume it’s mounted to the transom? Take picture of it and post it here.

You just use screws and 5200. I’m going to assume it will require new holes and screws.. be sure and clean out the old screw holes the best you can and pack them with 5200. When you install the new screws be sure and pack the holes with 5200 and bed the transducer bracket with 5200.

Yea, mine looks identical to yours (same bracket and mounted location) except that mine is mounted so that the bottom of the transducer sits about 1.5" below the bottom of the hull. I don't think that's right. The adhesive that's on mine now seems soft and flexible. I can literally just pull it all off with my fingers. This probably has to do with why the bracket can wiggle. If the existing screws come out easily can I reuse the same holes?